Circa (from Latin, meaning "around"), usually abbreviated c. or ca. (also circ. or cca.), means "approximately" in the English language, usually referring to a date. Circa is widely used in genealogy and historical writing when the dates of events are not precisely known.

When used in date ranges, the term "circa" is applied before each approximate date, while dates without "circa" immediately preceding them are generally assumed to be known with certainty.

Examples:

Ryan Gallant, (born May 25, 1982, in Waltham, Massachusetts, USA) is a professional skateboarder,his stance is goofy footed currently riding for Expedition One Skateboards, Independent Trucks, Bones Swiss Bearings, Gold Wheels, MOB Grip, Circa.^{[citation needed]}

He was raised in Southboro, Massachusetts, and he currently resides in Carlsbad, California. He was first noticed in the skate video PJ Ladd's Wonderful Horrible Life, a shop video from Coliseum skate shop located in Boston. He is also affiliated with True East Skateshop, which is an East Coast based chain of mom and pop shops. Gallant was first sponsored by Expedition One skateboards and had a video part in their first video entitled, "Alone". Gallant also had video parts in Gold Wheels, "Got Gold?", Transworld Skateboarding's 2005 video entitled, "First Love", and a short video montage in DC's DC Video. In April 2009, Gallant left his long time sponsor DC Shoes and established a sponsorship deal with Circa.

He is also featured in the 2007 video game, EA Skate as a playable character. He is also featured in the EA Skate sequels, Skate 2 and Skate 3.

James Thomas "Jimmy" Fallon, Jr. (born September 19, 1974) is an American actor, comedian, singer, musician and television host. He currently hosts Late Night with Jimmy Fallon, a late-night talk show that airs Monday through Friday on NBC. Prior to that he appeared in several films, and was best known as a cast member on Saturday Night Live from 1998–2004.

James Thomas Fallon, Jr., was born in Brooklyn, New York. Jimmy is the son of Gloria and James Fallon, Sr., who is a Vietnam War veteran. His family later settled in Saugerties, New York, while his father worked at IBM in nearby Kingston, New York. He is of Irish descent. As a child, he and his older sister, Gloria, would reenact the “clean parts” of Saturday Night Live that his parents had taped for him. Fallon was such a fan of Saturday Night Live that he made a weekly event of watching it in his dormitory during college. In his teens, he impressed his parents with different impersonations, the first being of James Cagney. He was also musically inclined, and started playing guitar at age 13. He would go on to mix comedy and music in contests and shows.